2005 BMW M3 Competition (E46) Track Test: SMG, CSL Intake, and Track-Prepped Suspension

E46 M3 Competition Track Day Experience

• 🚗 The 2005 BMW M3 Competition, featuring a 6-speed SMG transmission, is put through its paces on the track.
• 🎶 The car now has a quieter exhaust and a carbon CSL-style intake, giving it a different personality compared to its previous loud setup.
• 💨 It's equipped with Falken RT660 tires (265s all around) on Apex wheels, providing excellent grip.

Driving Dynamics and Performance

• 🕹️ The SMG transmission, with a CSL tune, offers smooth shifts and automatic blips on downshifts, making it manageable even in a gear-heavy track environment.
• 💡 The steering is highlighted as a significant improvement, with a quicker ratio and better on-center feel thanks to the CSL steering rack and aluminum coupler.
• 🚀 The car feels well-balanced, stable under braking, and rotates beautifully, offering a forgiving yet responsive driving experience.
• 📈 The suspension is set up for track use with adjustable coilovers and specific alignment settings (-3.5/-2.5 degrees camber, 0 front toe, -0.08 rear toe).

Key Modifications and Features

• 🛑 The braking system includes Stoptech ST60 front big brake kit with 355mm rotors and stock ZCP rear calipers.
• 💺 Recaro Pole Position ABE seats provide a much-improved seating position and support compared to the stock seats, crucial for track driving.
• ⚙️ Powertrain modifications are minimal, focusing on intake and exhaust tuning, with ACL rod bearings and ARP bolts for durability.

Overall Impression and Comparison

• ✨ The E46 M3 Competition is praised for its cohesive platform, balanced handling, and enjoyable driving dynamics, feeling modern despite its age.
• 🛣️ It's suggested that cars like the Camaro and Blackwings are more of an evolution of this E46 M3's philosophy than the newer M cars.
• 👍 The car is described as a joy to drive, with a perfect power level for aggressive throttle application and a well-balanced chassis that allows for smooth, precise driving.
• 🏁 The driver achieved lap times in the 1:32 range, with potential for more improvement, highlighting the car's capability and the driver's enjoyment.